This thread is for posting the details of which RadeonHD.chip compatible cards are working. This will ultimately be compiled into a compatibility list. When adding your card, please list:
- Full card details, including manufacturer
- The driver version
- Which outputs were tested/working
- any issues that exist

Sam Flex 667 OS4.1 with latest Quickfix and 1 Gig ram
Radeon Debug Driver 0.6 (Latest)
Visiontek Radeon X1300 DMS59 256M PCI NOTV
When installed in the top PCI slot, the heatsink on this card is large enough that it blocks the lower two SATA ports on the motherboard J22 and J23.

Tried the analog output on connector (1) of DMS59 "Y" cable and analog from internal header. Both work well. Sam bios graphics are corrupted and boot menu text is green. The Splash screen and Workbench look great. Window response is very good with compositing turned off. It slows to a crawl with hardware support enabled.